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1
24
25 package org.aspectj.compiler.base.ast;
26
27 import org.aspectj.compiler.base.*;
28 import java.io.IOException  ;
29
30 import org.aspectj.compiler.base.bcg.CodeBuilder;
31 import org.aspectj.compiler.base.bcg.Label;
32
33 public final class FloatType extends RealType {
34
35 protected boolean isAssignableFromOtherType(Type other) {
36 return (other instanceof NumericType) && ! (other instanceof DoubleType);
37 }
38
39 public String getName() { return "float"; }
40 public int getTypeIndex() { return Type.FLOAT; }
41 public Type getRefType() { return getTypeManager().getType("java.lang", "Float"); }
42 public Expr getNullExpr() { return new FloatLiteralExpr(getAST().getSourceLocation(), 0); }
43
44 public FloatType(JavaCompiler compiler) {
45 super(compiler);
46 }
47
48 public String getDescriptor() { return "F"; }
50
51 private LiteralExpr makeLit(float f) {
53 return new FloatLiteralExpr(getAST().getSourceLocation(), f);
54 }
55 private LiteralExpr makeBooleanLit(boolean b) {
56 return getAST().makeLiteral(b);
57 }
58
59 LiteralExpr foldCast(LiteralExpr rand) {
60 return makeLit(rand.getFloatValue());
61 }
62
63 strictfp LiteralExpr foldPlusOp(LiteralExpr rand) {
64 return makeLit(+ rand.getFloatValue());
65 }
66 strictfp LiteralExpr foldMinusOp(LiteralExpr rand) {
67 return makeLit(- rand.getFloatValue());
68 }
69
70 strictfp LiteralExpr foldAddOp(LiteralExpr rand1, LiteralExpr rand2) {
71 return makeLit(rand1.getFloatValue() + rand2.getFloatValue());
72 }
73
74 strictfp LiteralExpr foldNumericOp(String op,
75 LiteralExpr lit1, LiteralExpr lit2) {
76 final AST ast = getAST();
77 float a = lit1.getFloatValue();
78 float b = lit2.getFloatValue();
79 if (op == "-") return ast.makeLiteral(a - b);
80 else if (op == "%") return ast.makeLiteral(a % b);
81 else if (op == "/") return ast.makeLiteral(a / b);
82 else if (op == "*") return ast.makeLiteral(a * b);
83 else throw new RuntimeException ("bad numeric op " + op);
84 }
85
86 LiteralExpr foldEqualityTestOp(String op, LiteralExpr lit1, LiteralExpr lit2) {
87 final AST ast = getAST();
88 float a = lit1.getFloatValue();
89 float b = lit2.getFloatValue();
90 if (op == "==") return ast.makeLiteral(a == b);
91 else if (op == "!=") return ast.makeLiteral(a != b);
92 else throw new RuntimeException ("bad op " + op);
93 }
94
95 LiteralExpr foldNumericTestOp(String op, LiteralExpr lit1, LiteralExpr lit2) {
96 final AST ast = getAST();
97 float a = lit1.getFloatValue();
98 float b = lit2.getFloatValue();
99 if (op == "<") return ast.makeLiteral(a < b);
100 else if (op == "<=") return ast.makeLiteral(a <= b);
101 else if (op == ">=") return ast.makeLiteral(a >= b);
102 else if (op == ">") return ast.makeLiteral(a > b);
103 else throw new RuntimeException ("bad op " + op);
104 }
105
106
108 void emitAdd(CodeBuilder cb) { cb.emitFADD(); }
109
110 void emitNumericOp(CodeBuilder cb, String op) {
111 if (op == "-") cb.emitFSUB();
112 else if (op == "%") cb.emitFREM();
113 else if (op == "/") cb.emitFDIV();
114 else if (op == "*") cb.emitFMUL();
115 }
116
117 void emitNeg(CodeBuilder cb) { cb.emitFNEG(); }
118
119 public void emitLoad(CodeBuilder cb, int loc) { cb.emitFLOAD(loc); }
120 public void emitStore(CodeBuilder cb, int loc) { cb.emitFSTORE(loc); }
121 public void emitReturn(CodeBuilder cb) { cb.emitFRETURN(); }
122
123 void emitCast(CodeBuilder cb, Type castTo) {
124 ((NumericType) castTo).emitCastFromFloat(cb);
125 }
126 void emitCastFromInt(CodeBuilder cb) { cb.emitI2F(); }
127 void emitCastFromFloat(CodeBuilder cb) { }
128 void emitCastFromLong(CodeBuilder cb) { cb.emitL2F(); }
129 void emitCastFromDouble(CodeBuilder cb) { cb.emitD2F(); }
130
131 void emitZero(CodeBuilder cb) { cb.emitFloatConstant(0.0f); }
132 void emitOne(CodeBuilder cb) { cb.emitFloatConstant(1.0f); }
133 void emitMinusOne(CodeBuilder cb) { cb.emitFloatConstant(-1.0f); }
134
135 void emitEqualityCompare(CodeBuilder cb, String op, Label t, Label f) {
136 cb.emitFCMPL(); if (op == "==") cb.emitIFEQ(t, f);
138 else if (op == "!=") cb.emitIFNE(t, f);
139 }
140
141 void emitNumericCompare(CodeBuilder cb, String op, Label t, Label f) {
142 if (op == "<") { cb.emitFCMPG(); cb.emitIFLT(t, f); }
143 else if (op == "<=") { cb.emitFCMPG(); cb.emitIFLE(t, f); }
144 else if (op == ">=") { cb.emitFCMPL(); cb.emitIFGE(t, f); }
145 else if (op == ">") { cb.emitFCMPL(); cb.emitIFGT(t, f); }
146 }
147
148 void emitAload(CodeBuilder cb) { cb.emitFALOAD(); }
149 void emitAstore(CodeBuilder cb) { cb.emitFASTORE(); }
150
151 }
152 |
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